Air velocity gauge



FIG. 1 is a front elevational view of an air velocity gauge showing ournew design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right front perspective view thereof;

FIG. 5 is a left rear perspective view thereof; and

FIG. 6 is a right side elevational view thereof.

The ornamental design for an air velocity gauge, substantially as shownand described.